Research output: Contribution to journal › Article › peer-review
Polymer composites containing dispersed VO2 of various polymorphs : Effects of polymer matrix on functional properties. / Petukhova, Y. V.; Kudinova, A. A.; Bobrysheva, N. P.; Levin, O. V.; Osmolowsky, M. G.; Osmolovskaya, O. M.
In: Materials Chemistry and Physics, Vol. 235, 121752, 01.09.2019.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Polymer composites containing dispersed VO2 of various polymorphs
T2 - Effects of polymer matrix on functional properties
AU - Petukhova, Y. V.
AU - Kudinova, A. A.
AU - Bobrysheva, N. P.
AU - Levin, O. V.
AU - Osmolowsky, M. G.
AU - Osmolovskaya, O. M.
PY - 2019/9/1
Y1 - 2019/9/1
N2 - VO2 (B), VO2 (A) and VO2 (M) polymorphs were obtained by energy efficient semi-industrial hydrothermal process. Synthesis of thermochromic VO2 (M) was performed in two steps and included thermal treatment in an inert atmosphere. The crystallographic peculiarities were observed by powder X-ray diffraction study. Scanning electron microscopy and specific surface area estimation showed the influence of recrystallization on the particles size and shape. The technique of VO2 surface modification with electrically conductive polymer (polyaniline) was developed and proved by infrared spectroscopy. The impact of the polymer on the composite properties was investigated in case of three different crystal phases of VO2 with different functionality. Vibrating-sample magnetometry, impedance spectroscopy, cyclic voltammetry and room condition modelling showed that polyaniline surface leads to competitive interactions but doesn't ruin optical switching abilities of VO2 (M). Polyethylene glycol as electrically nonconductive matrix demonstrated the difference in electrical conductivity between VO2 phases while conductive polyaniline eliminated them.
AB - VO2 (B), VO2 (A) and VO2 (M) polymorphs were obtained by energy efficient semi-industrial hydrothermal process. Synthesis of thermochromic VO2 (M) was performed in two steps and included thermal treatment in an inert atmosphere. The crystallographic peculiarities were observed by powder X-ray diffraction study. Scanning electron microscopy and specific surface area estimation showed the influence of recrystallization on the particles size and shape. The technique of VO2 surface modification with electrically conductive polymer (polyaniline) was developed and proved by infrared spectroscopy. The impact of the polymer on the composite properties was investigated in case of three different crystal phases of VO2 with different functionality. Vibrating-sample magnetometry, impedance spectroscopy, cyclic voltammetry and room condition modelling showed that polyaniline surface leads to competitive interactions but doesn't ruin optical switching abilities of VO2 (M). Polyethylene glycol as electrically nonconductive matrix demonstrated the difference in electrical conductivity between VO2 phases while conductive polyaniline eliminated them.
KW - Hydrothermal synthesis
KW - Polymer-inorganic composite
KW - Semiconductor-to-metal phase transition
KW - Vanadium dioxide
KW - SUPERCAPACITOR ELECTRODE
KW - NANOSTRUCTURES
KW - HYDROTHERMAL SYNTHESIS
KW - THERMOCHROMIC VO2
KW - EVOLUTION
KW - CRYSTAL-GROWTH
KW - PHASE-TRANSITION
KW - VANADIUM DIOXIDE
KW - MORPHOLOGY
UR - http://www.scopus.com/inward/record.url?scp=85068053142&partnerID=8YFLogxK
U2 - 10.1016/j.matchemphys.2019.121752
DO - 10.1016/j.matchemphys.2019.121752
M3 - Article
AN - SCOPUS:85068053142
VL - 235
JO - Materials Chemistry and Physics
JF - Materials Chemistry and Physics
SN - 0254-0584
M1 - 121752
ER -
ID: 43541708